Smallville producer Kelly Souders has hinted that Michael Rosenbaum could make a return to the show.

Speaking to Entertainment Weekly, Souders said that she "would love to have him back".

"He came by the writers office a couple weeks ago," she said. "We all love him. The crew and the cast love him. We would love to have him back. We're constantly talking to him trying to figure out if there's a way.

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"And believe me, we will keep fighting that fight until the final episode. And I know he'd love to come back too."

Souders went on to reveal that the only thing preventing a Lex return is Rosenbaum's scheduling.

"He's doing other projects, so the timing of things is always a little tricky. Things have to get planned way in advance. And if he's locked into something, even if at the end of the day the schedule works out, you often don't know until you're already shooting.

"But I'm believing that the Smallville stars will align at some point. Whether it's this season or [a possible 10th season], my gut wants him back so desperately that I'm going to believe it's going to happen.

"I can't think of a better way to [end the series] than by bringing him back."